A dosing pipette for discharging a medium, wherein the pipette has a housing and a dosing piston. Snippets of source documents may be provided in response to a user request for the source documents from which the fact answer to a fact query was extracted. In some embodiments the polypeptide includes an EosFP polypeptide, a calmodulin polypeptide, and a M13 polypeptide, or fragments andor variants thereof. The level of the taxpaying entity’s tax avoidance may be calculated from analysis of the taxpaying entities controlled transactions.